Door-locking mechanism



A. D. SARRA.

DOOR LOCKING MECHANISM.

APPLICATION FILED NOV. 5. 19.20.

1,399,886. I Patented Dec 1 3, 192 1. I

4 $HEET$-SHEET I- F IG. 1 FIG. 2

invented:

J, 3 Jarra/ 61 ("$0 I neg A. D. SARRA.

DOOR LOCKING MECHANISM.

APPLICATION FILED NOV. 5, 1920.

1,399,886. Patented Dec. 13, 1921.

4 SHEETS-SHEET 2.

FIG. 3

C/Z, i7, Jam/'0 A.-D. SARRA.

DOOR LOCKING MECHANISM.

APPLICATION FILED NOV. 5. I920.

1,399, 8 Patented Dec. 13, 1921.

4 SHEETSSHEET 3.

FIG. 5.

rm L

FIG.13aI.

IIIIIII 45 A. D. SARRA. DOOR LOCKING MECHANISM.

APPLICATION HLED NOV. 51 1920. 1,399, Patented Dec.13, 1921.

4 SHEETSSHEET 4- 3%"49 44 FIG. 7.

=4. .0 Jar/m abfo'uwq v ANGELO Domenico saanA, or EW YORK, itfY.

IDOQR-LOCKIZN'G 'rn'onanisia.

Specification of tetter's'ratett. PatentedDec. 3,.1Js21.

Application filed sweater 5,";1e2 o. eer-term. tale la TocZZ whom it may concern Be it known that}, Ernesto SARRA, a subject of the King of Italy, resid-- ing at New Y'orl' in the county of New York and State of New York, have inventedfcertain new and useful lmprovementsin Door- Locking Mechanism, of which the following is a specification.

This invention relates to certain new and useful improvements in door locking mechanism and has for one of itsob ects to provide a locking. mechanism. especially de1- signed for doors wherein there is provided a combined permutation lock and sliding latch, the operation of the sliding latch being dependent upon the operationof the permutation lock mechanism.

' A further object of the invention has particular refer'ence to a door locking mecha-. nism wherein a. sliding bolt carried by the door and adapted for projection in a keeper 7 opening within the door frame is under conthe sliding bolt, I f a V rear elevational ,view of the lock casing showlng the sliding trol of permutation lock mechanism while a vertically shdmglatch carried by thedoor and adapted to be projected for engagement with the upper side of the door frame is sup ported at its lower end when in locked position, by the permutation lock control sliding bolt.

I With the above and other objects in view, .the present invention consists in the novel form, combination and arrangement of parts hereinafter more fully described inconnec-f tion with the accompanying drawings and in which like reference characters indicate similar parts throughout the several views;

In'the drawings, I I Figure 1 is an elevational' view .of the outer side of a door witha portion ofthe adjacent frame and having an improved, construction of lock mechanism for o the door attached thereto,

Fig. 2 is an elevational view of the'doo'r showing the inner side-thereof with the permutation lock controlled sliding bolt and the vertically sliding latch rod, I

Fig. 3 is a front fragmentary elevational view showing the operating disks of thepermutation lock mechanism for controlling F g 4; 1s a. fragmentary bolt retracted and the latch rod lowered,

Fig. 5 is a fragmentary elevational view,

similar to Fig; 3 showing the sliding bolt retracted,

Domenico Fig. 6 is'a n ele'vationalview of the permit tation lock casing with the cover plate-there of removed showing-the tensioned dog on r the sliding bolt lowered to a position free of engagement with the 'lock ca sing to permit I sliding movement :of the bolt, 1 Fi 7 portion of the door andaloc'k casing attached thereto, V m

Fig. 8 isa cross sectional view; taken on line VIII-X7111 of .5' showingthe rotatable disks within the lock casing for controlling movement .(jf'illle sliding bolt, i

Fig. '9is a i'cross sectional {View taken on line IX IX: of Fig.7 showing the rotatable disks within the casing operated by the eXterior-lyposi'tioned jdisks with the tension dog carried by'the sliding :bolt engaging the disks within the lock casing,

of the permutation members for, operating a 'rotatable"diskfwithinthewcasing; Fig. 10*. is :a. bottom :plan View 'ofthe permutation member shown'in' Fig; 10,

18 a fragmentary pplan view 1 Fig. 11 is a fragmentary plan view ofone of the rotatable disks within the lock casing,

one of these disks being employed for -shift-- i if ing the sliding bolt inopposite directions,

Fig. 11 is an edge' view .of the 85.3185

Flg.'l2.ls fragmentary plan view of one t ree ofthe same being required,

F1g.-1'2 1s an edge vlew of the same, F1g. 13 1s a bottom-plan. view ofthe key of the rotatable disks within the lock casing,

members,

Fig. 13? is a top plan viewof the key, and

Fig." 13 is an edge viewof-the same.

Briefly described, the present invention hasfor one of its objects "to provid'e a com.-

to employed for shifting" the disk operating bined door, lock embodying a permutation lock n IItrQlledsliding boltand a sliding latch rod carried by thedo'or and associated with the sliding {bolt for engagement with the door frame, cotiperating-with the bolt to hold the door in; lockjed' condition. A look casing is secured-to the inner face oflthe door with a horizontally sliding bolt projecting from each end thereof andconsti tutes an abutment support forthe sliding.

latch rod when the bolt is in locked position to hold the latch rod elevated inlocking p'osition. Rotatable disks are 'ourn'tled within the lock casing and are operated by rotatable me bers. extending into the casing and opt erable exteriorly thereof A tensioned dog aid is carried by the sliding bolt and is adapted to be engaged by the rotatable disks within the lock casing to hold the same in engagement with selective notched recesses in partitions provided in the lock casing to hold the sliding bolt in either locked or unlocked position. By manipulating the rotatable disks through the medium of the operating members therefor, the tensioned dog carried by the sliding bolt is permitted to move out of engagement with the lock casing to permit one of the rotatable disks shifting the sliding bolt in either direction. A peculiar type of key forshifting the disk operating members is provided while a false pin is positioned centrally of the permutation lock mechanism for purposes of confusing one unfamiliar with the lock construction, and otherwise performing no function.

Referring more in detailto the accompanying drawings, and particularly to Figs. 1 and 2,'there is illustrated a door 1 hinged within a frame 2 set in a wall mounting 3. The door 1 is retained in a closed locked position as shown in Fig. 2 by a sliding lock bolt and a sliding latch rod, there being provided a lock casing 4 secured to the inner face of the door and carrying a sliding bolt 5 adapted when in projected position for re ception in the keeper 6 carried by the door frame 2 while the opposite end of the bolt 5 projects from the casing 4 and is provided with an abutment shoulder 7 upon which the lower endof a vertically sliding latch rod 8 is adapted to rest when the bolt is in locked position, the latch rod being guided in its movements by hearing straps 9 and carrying a knob 10 projecting through a slot 11 in thedoor 1 for operation upon the outer side of the door, while permutation lock mechanism 12 positioned on the outerface of the door as shown in Fig. 1 controls the movement of the sliding bolt 5. v The details of the invention are shown more clearly in Figs. 3 to 13, wherein the lock casing 4, being-preferably rectangular in plan embodies side Walls 13 and 14 connected by transverse walls 15-with the wall 14 suitably secured'to the door 1. Spaced partitions 16 and 16 are provided in the lock casing 4 as shown in Figsl6, 8, and 9 and have relatively large rectangular openings formed therein as shown in Fig. 6 with the upper walls of the openings in the partitions 16 and 16 having notched portions 17 therein. A transverse plate 18 connects the side walls of the openings in the partitions 16 and 16 as shown in Figs. 6 and 9 and is provided with spaced slots 19 for purposes presently to appear.

The sliding bolt 5 is shown more clearly in Figs. 4 and 6, the same embodying a projecting nose 20 adapted for reception in the keeper 6 while the opposite end thereof carries an overlying rearwardly directed abutment lug 7 positioned exteriorly of the casing 4 and overlying the connecting wall 15 as shown in saidfigures. Thebody portion of the bolt 5 extends transversely. of the upper end of the casing 4 above the slotted plate 18 and has the lower edge thereof cut away as at 21 to provide a clearance for the spring d0g-22 secured to the bolt 5 as at 23 adjacent the abutment end 7 while the' forwardend of the spring dog 22 carries a transverse head 24 normally projecting below the notched upper walls of the partitions 16 and 16 as shown in Figs. 6 and 9.

When the spring dog 22 is held in an elevated position'by rotatable disks within the casing 4,the same is received in either of the spaced notches 17 thus to hold the sliding bolt 5 against movement when-in either locked Or unlocked condition.

To accomplish the function of holding the bolt 5 in either position, a set of rota '25 and the head'24 of the spring dog 22, the peripheral edge of the disk is cut away at one portion thereof to provide an abrupt opening 26, the wall of which is. pro

shoulder 28, a base wall 29 and a curved cam face 30 opposite to the'shoulder 28 and merging into the periphery of the disk. The

other three disks, each embody a plate 31 having a central opening 32, the wall of which is provided with a series of notches 33. The peripheral edge of each disk 31 is provided with a recess having a base wall 34 and outwardly converging side "walls 35.

The supporting means for the rotatable disks 25 and 31 are shown more clearly'in Figs. 5 and 8' to 10, the openings 32 in the disks 31 and the opening 26 in the disk 25 being of gradually increased areas to permit the passage of the inclosed' sleeves for supporting the disks. The outer inclosing sleeve 36 shown in Fig. 9 is detailed in Figs. 10 and 10 the same embodying a sleeve 36 carrying a disk 37 at the outer end thereof with a peripheral outwardly directed flange 38 providing a socket in the face of the disk as illustrated, while the inner end of the sleeve 36 is provided with toothed projections 39 for reception in the notches 27 of the rotatable disk 25. A lug 40 projects outwardly from the flange 38 on the disk 37 for engagement by a key to be later described for shifting the disk 37, the sleeve 36 and the disk 25 connected therewith. The permutation operating members for sup: porting the rotatable disks 31 embody telescoping sleeves 41 each having toothed inne'r ends 42 for reception in the notches 33 of the disks 31 while the outer ends of the sleeves are provided with disk heads 43 countersunk within each other as illustrated in Fig. 9 and each provided with a "separate operating lug 44, 45 and 46 respec tivel-y; t center bearing shaft 47 extends through the inner sleeve 41 and is mounted in the outer wall 13 of the lock casing while the several sleeves 36- and 31 andthe shaft 47 extend through an opening 48in the door 1; For purpcses'of deceiving one unfas moval of the pin 49-from the bolt 47, While a finger piece 53 carried by the outer side of the'c'up-shaped member is employed for rtating the same. 4 lug 46-projects in wardly of the side flange of the member 51 for engagement with the lug 46. A pair of tangentially extending arms 54 and 55 are carried by the key member 51, the arm 54 being provided with abutments 45 and 4O" for engagement respectively with the lugs 45 and 40 while the arm 55 carries an abutwhen the bolt 1s so released, the key is em- When the disks 25 and 31 are in the posiment 44 for engagement with the lug 44.

tion shown in Fig. 6,'the head 24 of the tensioned dog 22 carried by the bolt extends below the lower edge of the'bolt and also below the lower edge of the partition walls 16 and 16 for reception in the peripheral notches in the disks and 31. To slide the bolt 5 to the locked position shown in Figs. 2 and 3, t e key 51 has the center pin 52 thereof received in the shaft socket 50 withl the lugs 44, and 46' engaging the lugs 40, 44, 45, and 46 of the disks 37 and 43, simultaneously to rotate all of the disks 25 and 31 with the dog head 24 extending into the peripheral notches, this movement projecting the bolt to its locked position with the dog head traveling in a horizontal path of movement below the lower edges of the partition walls 16 and 16". In order to retain the bolt 5 in its locked position, the key 51 is removed from the lock casing and.

the lug 40 upon the sleeve disk 37 is rotated in the desired direction to cause the cam wall;

30 of the peripheral notch to engage the dog head 24 to elevate the same from the several disk notches and into the notches 17 in the lower edges of the partition walls. The other disks 43 are similarly rotated to displace their peripheral notches from alinenient with the partition wall notch and the dog head-,the resilient arm 22 of the dog forcing the head 24 thereof into f-reeriding engagement with "the conce'ntr'icperipheral edgesof the several disks with the dog head maintained in-the adjacent notch 17 For determining the relative positions of the notches in the--edges of the several disks,

and the partition wall notches, and dog head 24, the face of the lock' casing, as shown in Fig 5 together with the flange edges of the several sleeve disks are provided with permutation graduations -a,-. 'Thedisks 25 and 31 within the lock casing are rotated to position the peripheral notches for alinement with either of the partition wall notches 17 by the manual gripping of the lugs upon the outer faces of the sleeve disks 3.7 and 43-, the graduations upon said sleeves and lock casing determining thelrela tive po sitions of the inner'disks 25 and 31"with. re-' spect to the partition wall notches 17 -When the disks are properly positioned, the spring I dog 22 will force thehead 24 thereof into.

said notches and to slide the'bolt 5" trans versely of the casing, the key 51is employed, the lugs carried thereby being relatively positioned with respect to the lugs upon the disks 37- and' 43 as to cause a simultaneous movement of all of the inner disks 25 and 31.

It willltherefore be seen that the act of releasing the bolt 5 from its locking connection with the casing is accomplished by the individual shifting of the several disks 25 and 31 to the exclusionof the key 51, and

,is moved to its unlocked position, the bolt extension 7 having the beveled end thereof arranged at a degree as clearly indicated in Figs. 1, 4, and 6 to permit a free and easy elevating movement of the latch rod, or if desired, the latch rod 8 may be elevated by gripping the handle lO as shown in Figs.

1 and 2. i y

' WVhile there is herein shown and described the preferred embodiment of'the invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

What is claimed as new is:

'1. A look of the type described comprising a casing, a sliding bolt mounted therein, a tensioned dog carried by the bolt, partitions within the casing below the bolt and having spaced notchestherein, rotatable disks within the casing having peripheral notches adapted to receive the tensioned dog carried 7 by the bolt to shift the bolt within the'casing' andindependently operating means associated with the disks to position the notched edges thereof for reception of the dog.

2. ,A look of the type described comprising a casing, a sliding bolt mounted therein, a tensioned dog carried by the bolt, partitions within the casing below the bolt and having spaced notches therein, rotatable disks within the casing having peripheral notches adapted to receive the tensioned dog carried by'the bolt to shift the bolt within the casing and independently operating means associated with the disks. to position the notched edges thereof for reception of the dog, one

wall of a peripheral disk notch being inclined to elevate the dog into the partition notches to prevent sliding movement of the bolt. 7 a

3.. A lock of the type described comprising a casing, a sliding bolt mounted therein, co-

operating devices carried by the bolt and bolt, one of said disks being operable to displace the dog from all of the disk notches and into engagement with the lock casing for holding the bolt against sliding movement, means for independently shifting the disks and a key for simultaneously shifting the disks when the bolt dog is received in the disk notches. I

4. A lock of the type described comprising a casing, a sliding bolt mounted therein, cooperating devices carried by the bolt and casing for shifting the bolt to its locked and unlocked position and for holding the same in either position against movement, said devices including a tensioned dog carried by the bolt and projecting laterally thereof, a plurality of disks journaled in the casing having peripheral notches for receiving the dog to effect the shifting movement of the bolt, one of said disks being operable to displace the dog from all of the disk notches and into engagement with the lock casing for holding the bolt against sliding movement, means for independently shifting the disks and a key cooperating with the separate disks for simultaneously shifting the same to effect a sliding movement of the bolt. v

In testimony whereof I affix my signature.

ANGELO DOMENICO SARRA, 

